"COLUMBUS, Ohio -- Federal environmental regulators are investigating a January chemical emergency at an Ohio oil well and asking why an inventory of the facility's chemicals wasn't available to local authorities, according to a letter released Wednesday by a coalition of activists."

"Tokyo Electric Power Co. said radioactive water may still be leaking into the sea from the crippled Fukushima No. 1 nuclear power plant after enhanced levels of radioactive tritium were detected in the port area in front of the facility."

"The Energy Department is moving toward abandoning a half-built factory that has cost $3.7 billion so far and was intended to make reactor fuel out of plutonium from retired nuclear bombs — part of an agreement with Russia to shrink the world’s supply of nuclear bomb fuel after the cold war."

"ALBUQUERQUE, N.M. -- A furious wildfire torching through the mountains of southern New Mexico's Gila National Forest has grown to 127 square miles, forcing some ranchers to ship their cattle out of state as the blaze burns through entire grazing areas."

"AMSTERDAM -- Australia will try to persuade judges that Japan's scientific whaling program is commercial whaling in disguise in a case between the countries that opens in The Hague on Wednesday."

"NEW ORLEANS — BP is placing full-page advertisements in three of the nation’s largest newspapers on Wednesday as the company mounts an aggressive campaign to challenge what could be billions of dollars in settlement payouts to businesses after its 2010 oil spill in the Gulf of Mexico."

"The Lyme-disease infection rate is growing. So is the battle over how to treat it."

"Sen. Joe Manchin (D-W.Va.) blasted President Obama's proposals to address climate change, saying new regulations on power plants would unfairly burden the coal industry."

"Yes, such a group exists. It thinks the world is flat -- but also getting warmer."

"President Obama set a high bar for approval of the controversial Keystone XL pipeline, declaring for the first time that he would let the project go forward only if it does not 'significantly increase' emissions of greenhouse gases."